The Maquoketa River carves a winding path through this corner of Delaware County, defining the local geography and recreational landscape. Most prominent is Backbone State Park, featuring the distinctive ridge known as The Backbone and the waters of Backbone Lake. This area was established as Iowa's first state park, and its enduring presence is reflected in the surrounding developments like the Forest Villa Resort and the nearby settlement of Forestville. The terrain is shaped by several watercourses including Sand Hagen Cr and Rieger Cr, which feed into the primary river system.
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This is the sole edition of this map. No revisions or reprints were ever made.
1900 · Anamosa
USGS Topo · 1:125,000
1901 · Oelwein
USGS Topo · 1:125,000
1902 · Elkader
USGS Topo · 1:125,000
1903 · Winthrop
USGS Topo · 1:125,000
1959 · Dubuque
USGS Topo · 1:250,000
1961 · Dubuque
USGS Topo · 1:250,000
1962 · Dubuque
USGS Topo · 1:250,000
1964 · Edgewood
USGS Topo · 1:24,000
1965 · Thorpe
USGS Topo · 1:24,000
1965 · Strawberry Point
USGS Topo · 1:24,000